NodeBB is designed to work best under a virtual private server. Using a traditional hosting service is not recommended as they do not have the capabilities to power NodeBB effectively.The code and instructions can be found here at our project repository Full instructions can be found in our Documentation Portal We recommend DigitalOcean to host your NodeBB, you'll get a month free just by registering with this link. You can also try applying the 10TOSHIP coupon to get another two months free.
Thank you for your interest in NodeBB!
To answer your last query, NodeBB supports both 😄
Thank you to both of you 🙂